Nested part feature represents the concept of hierarchy to edje.

A nested part inherits it's location relatively to the parent part. Thus, parent part modifications such move or map effects all nested parts. To declare a nested part just start a new part declaration within (before closing) the current part declaration.

Note that nested part declaration is allowed only after current part name is defined.

Here's an example of a rect nested in other rect plus inner nested rect:

The example's window should look like this picture: